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单选题

Which Frame Relay feature is responsible for transmitting keepalives to ensure that the PVC does not shut down because of inactivity?()

发布日期:2021-03-17

Which Frame Relay feature is responsible for trans...
A

DLCI

B

BECN

C

FECN

D

LMI

E

CIR

F

DE

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此试题出现在

儿科护理主管护师(中级)

CCNA系列认证

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